Date her if she makes you happy, if she makes you laugh so hard that your ribs hurt. Date her when she sees that you're hurting, and she knows of all the things that make you feel better. Date her if she makes you feel loved,if she makes you smile, even if you've been sobbing. You have probably gone through a lot, and will go through a lot more, date her if she makes it all bearable.
This is for her.